Reiji married almost all of the heroines introduced in the story, including the stalker girl, his childhood bully-turned-friend, and the best friend of the childhood friend. Seven of his grandchildren have spoken lines, but all eight of them can be seen eating doughnuts.
Glasses guy who used to stalk the stalker girl doesn't appear, but at the funeral a young man who looks almost identical to him is seen crying. Probably the son of the glasses guy, which seems to indicate that the glasses guy and Reiji kept in touch even after he left Japan.